How To: Upgrade 2017 5k iMac RAM to 64GB & Saved $840 | 2018 - YouTube
Amazon.com: OWC 32GB (2 x 16GB) PC19200 DDR4 2400MHz SO-DIMMs Memory Compatible with Mac Mini (Late 2018), 27" and 21.5" iMac (Mid 2017), and Compatible PCs (OWC2400DDR4S32P) : Everything Else
The New 2017 iMac: Notes & Tidbits on RAM - The Mac Observer
Amazon.com: 2017 Apple iMac with Intel Core i5 (21.5-inch, 8GB RAM, 1TB Storage) - Silver (Renewed) : Electronics
iMac Pro (late 2017) CPU & Arbeitsspeicher/RAM Upgrade/Aufrüstung | iMac (2010 - 2019) | Mac Upgrade/Aufrüstung | Tronicspot
How to upgrade RAM in the (Mid 2017) 5K iMac and save up to ~$900 [Video] - 9to5Mac